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Finding the Fourth Proportional to 22,461.54, 30,992.85 and 13,965.90

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Solution

The fourth proportional to 22,461.54, 30,992.85 and 13,965.90 is: 19,270.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,461.54 : 30,992.85 = 13,965.90 : x
  2. Step 2: Convert to fraction form
    22,461.54/30,992.85 = 13,965.90/x
  3. Step 3: Cross multiply
    22,461.54x = 30,992.85 × 13,965.90
  4. Step 4: Simplify right side
    22,461.54x = 432,843,043.82
  5. Step 5: Solve for x
    x = 432,843,043.82/22,461.54
  6. Step 6: Final answer
    x = 19,270.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.